usZipCodeRequired
If shouldShowPostalCode is true and usZipCodeRequired is true, then postal code is a required field and must be a 5-digit US zip code.
If shouldShowPostalCode is false, this value is ignored.
If shouldShowPostalCode is true and usZipCodeRequired is true, then postal code is a required field and must be a 5-digit US zip code.
If shouldShowPostalCode is false, this value is ignored.